import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from './components/Login.vue'
import Home from './components/Home.vue'
import Welcome from './components/Welcome.vue'
import Users from './components/user/Users.vue'
import Rights from './components/power/Rights.vue'
import Roles from './components/power/Roles.vue'
import Cate from './components/goods/Cate.vue'
import Params from './components/goods/Params.vue'
import GoodsList from './components/goods/List.vue'
import Add from './components/goods/Add.vue'
import Order from './components/order/Order.vue'
import Report from './components/report/Report.vue'
Vue.use(VueRouter)
const router= new VueRouter({
    routes:[
        // 重定向的路由规则（如果用户访问的是/，就把路径重定向到/login就行）
        {path:'/',redirect:'/login'},
        {path:'/login',component:Login},
        {
            path:'/home',
            component:Home,
            redirect:'/welcome',
            children:[
                {path:'/welcome',component:Welcome},
                {path:'/users',component:Users},
                {path:'/rights',component:Rights},
                {path:'/roles',component:Roles},
                {path:'/categories',component:Cate},
                {path:'/params',component:Params},
                {path:'/goods',component:GoodsList},
                {path:'/goods/add',component:Add},
                {path:'/orders',component:Order},
                {path:'/reports',component:Report}
            ]
        },
        
    ]
})

// 挂载一个路由导航守卫
router.beforeEach((to,from,next)=>{
    // next是一个函数，表示放行
        // next() 直接放行   next('/login') 强制跳转到指定路径 
    if (to.path==='/login') return next()
    // 获取token
    const tokenStr=window.sessionStorage.getItem('token')
    if(!tokenStr) return next('/login')
    next()

})
export default router

